/* ============================================
   杭州广耀工贸有限公司 - 核心组件样式
   ============================================ */

/* ========== 导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  background: rgba(12, 20, 26, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(96, 125, 139, 0.35);
  box-shadow: 0 12px 32px rgba(8, 12, 16, 0.35);
  z-index: var(--z-index-fixed);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: 0 18px 40px rgba(8, 12, 16, 0.45);
  background: rgba(12, 20, 26, 0.96);
  height: 60px;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-lg);
  padding-left: var(--spacing-sm);
  max-width: var(--container-width-2xl);
  margin: 0 auto;
  width: 100%;
}

.navbar-logo {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
  text-decoration: none;
  transition: color var(--transition-base);
  letter-spacing: 1px;
  white-space: nowrap;
}

.navbar-logo:hover {
  color: var(--color-accent);
}

.navbar-logo img {
  height: 50px;
  width: auto;
  margin-right: var(--spacing-md);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius-full);
  background: linear-gradient(135deg, rgba(255, 87, 34, 0.85) 0%, rgba(255, 193, 7, 0.35) 100%);
  color: var(--color-text-white);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  margin-right: var(--spacing-sm);
  box-shadow: 0 12px 24px rgba(255, 87, 34, 0.35);
}

.logo-text {
  font-size: var(--font-size-lg);
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
  display: inline-block;
}

.navbar-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--spacing-md);
  color: var(--color-text-white);
  flex-wrap: nowrap;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  color: rgba(255, 255, 255, 0.84);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base);
  border-bottom: 2px solid transparent;
  letter-spacing: 0.5px;
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

.navbar-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.navbar-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ========== 下拉菜单 ========== */
.navbar-dropdown {
  position: relative;
}

.navbar-dropdown-toggle::after {
  content: '▼';
  font-size: 10px;
  margin-left: var(--spacing-sm);
  transition: transform var(--transition-base);
  color: inherit;
}

.navbar-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(15, 23, 31, 0.95);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 18px 36px rgba(6, 10, 14, 0.45);
  min-width: 200px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: var(--z-index-dropdown);
  margin-top: var(--spacing-sm);
}

.navbar-dropdown:hover .navbar-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar-dropdown:hover .navbar-dropdown-toggle::after {
  transform: rotate(180deg);
}

.navbar-dropdown-item {
  padding: var(--spacing-md) var(--spacing-lg);
  color: rgba(255, 255, 255, 0.84);
  text-decoration: none;
  display: block;
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
}

.navbar-dropdown-item:hover {
  background: rgba(255, 87, 34, 0.1);
  color: var(--color-accent);
  border-left-color: var(--color-primary);
  padding-left: calc(var(--spacing-lg) + 3px);
}

/* ========== 移动菜单 ========== */
.navbar-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  gap: 5px;
}

.navbar-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text-white);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
}

.navbar-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }

  .navbar-menu {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 15, 20, 0.98);
    border-top: 1px solid rgba(96, 125, 139, 0.45);
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .navbar-menu.active {
    max-height: 500px;
  }

  .navbar-item {
    width: 100%;
  }

  .navbar-link {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    border-left: 3px solid transparent;
  }

  .navbar-link:hover {
    border-bottom: 1px solid var(--color-border);
    border-left-color: var(--color-primary);
    background-color: var(--color-background-dark);
  }

  .navbar-dropdown-menu {
    position: static;
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    box-shadow: none;
    transform: none;
    background-color: var(--color-background-dark);
    border-radius: 0;
    margin-top: 0;
  }

  .navbar-dropdown.active .navbar-dropdown-menu {
    opacity: 1;
    visibility: visible;
    max-height: 500px;
  }

  .navbar-dropdown-item {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md) calc(var(--spacing-lg) * 2);
    border-left: none;
  }

  .navbar-dropdown-item:hover {
    padding-left: calc(var(--spacing-lg) * 2);
  }
}

/* ========== 卡片组件 ========== */
.card {
  background-color: var(--color-background-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--box-shadow-lg);
  transform: translateY(-4px);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-dark);
}

.card-text {
  color: var(--color-text-medium);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
}

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-background-dark);
}

/* ========== 部分标题 ========== */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-header.is-left {
  text-align: left;
  max-width: 860px;
}

.section-title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-dark);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--color-secondary);
  border-radius: var(--border-radius-full);
}

.section-header.is-left .section-title::after {
  left: 0;
  transform: none;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-medium);
  margin-top: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.section-header.is-left .section-subtitle {
  margin-top: var(--spacing-md);
}

/* ========== 页脚 ========== */
.footer {
  position: relative;
  background: linear-gradient(135deg, rgba(6, 10, 14, 0.95) 0%, rgba(28, 37, 46, 0.95) 45%, rgba(38, 50, 56, 0.95) 100%);
  color: var(--color-text-white);
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
  margin-top: var(--spacing-3xl);
  overflow: hidden;
}

.footer::before,
.footer::after {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 87, 34, 0.18) 0%, transparent 70%);
  opacity: 0.4;
  z-index: 1;
}

.footer::before {
  top: -120px;
  right: -120px;
}

.footer::after {
  bottom: -180px;
  left: -140px;
  background: radial-gradient(circle, rgba(255, 193, 7, 0.22) 0%, transparent 70%);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  max-width: var(--container-width-2xl);
  margin: 0 auto var(--spacing-2xl);
  position: relative;
  z-index: 2;
}

.footer-section h4 {
  color: var(--color-text-white);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-base);
}

.footer-section a:hover {
  color: var(--color-text-white);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  position: relative;
  z-index: 2;
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.breadcrumb-item {
  color: var(--color-text-medium);
}

.breadcrumb-item.active {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-semibold);
}

.breadcrumb-item a {
  color: var(--color-primary);
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-light);
}

/* ========== 标签 ========== */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-primary);
  color: var(--color-text-white);
}

.badge-secondary {
  background-color: var(--color-secondary);
}

.badge-success {
  background-color: var(--color-success);
}

.badge-warning {
  background-color: var(--color-warning);
  color: var(--color-text-dark);
}

.badge-error {
  background-color: var(--color-error);
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-2xl) 0;
}

.pagination-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  color: var(--color-text-dark);
  text-decoration: none;
  transition: all var(--transition-base);
}

.pagination-item:hover {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
}

.pagination-item.active {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
}

/* ========== 加载动画 ========== */
.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========== 响应式调整 ========== */
@media (max-width: 768px) {
  .navbar-container {
    padding: 0 var(--spacing-md);
  }

  .hero {
    padding: 80px var(--spacing-md);
    margin-top: 60px;
  }

  .hero-title {
    font-size: var(--font-size-h2);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .section-header {
    margin-bottom: var(--spacing-2xl);
  }

  .section-title {
    font-size: var(--font-size-h3);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 60px var(--spacing-md);
  }

  .hero-title {
    font-size: var(--font-size-h3);
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .card-image {
    height: 150px;
  }
}